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exis [7]
3 years ago
9

If f(x)=x^2find f(2)-f(0)/2

Mathematics
1 answer:
alukav5142 [94]3 years ago
8 0

Answer:

2

Step-by-step explanation:

On the picture above.

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Customers arrive at a grocery store at an average of 2.1 per minute. Assume that the number of arrivals in a minute follows the
Black_prince [1.1K]

Answer:

a)  P(2)=0.270

b) P(X>3)=0.605

c)  P=0.410

Step-by-step explanation:

We know that customers arrive at a grocery store at an average of 2.1 per minute. We use the  Poisson distribution:

\boxed{P(k)=\frac{\lambda^k \cdot e^{-\lambda}}{k!}}

a)  In this case: \lambda=2.1

P(2)=\frac{2.1^2 \cdot e^{-2.1}}{2}\\\\P(2)=0.270

Therefore, the probability is P(2)=0.270.

b)  In this case: \lambda=2\cdot 2.1=4.2

P(X>3)=1-P(X\leq 3)\\\\P(X>3)=1-\sum_{x=0}^3 \frac{4.2^x \cdot e^{-4.2}}{x!}\\\\P(X>3)=1-0.395\\\\P(X>3)=0.605

Therefore, the probability is P(X>3)=0.605.

c)  We know that two customers came in in the first minute. That is why we calculate the probability of at least 5 customers entering the other 2 minutes.

In this case: \lambda=2\cdot 2.1=4.2

P(X\geq 5)=1-P(X

Therefore, the probability is P=0.410.

4 0
3 years ago
Please help me!!!!!! I really neeeeeeed
Butoxors [25]

Answer:

A-(x+4,y-5)

B- move 1 unit left and 7 units down

Step-by-step explanation:

A- 4 units right is x so

(x+4,y__)

5 units down is y so

(x+4,y-5)

B- move 1 unit left and 7 units down

because (x-1,y__) is going left because of the subtraction sign and its the x-coordinate, and (x-1,y-7) is down because its a Y-coordinate and sub so its going down.

<h2><u>TIP- Going left/down is always subtract/negative going right/up is positive/addition.</u></h2>
6 0
3 years ago
Two non-perpendicular, non-bisecting, intersecting line segments definition
hichkok12 [17]
Line segments are parts of line that have fixed ends. For them to be perpendicular, the angle between them should be 90°. Bisecting lines are those that cut each other into two equal parts. If the lines intersect but the conditions above are not satisfied then, the lines are non-perpendicular and non-bisecting, intersecting lines. 
3 0
3 years ago
What are the prime and composite numbers<br> 9 15 19 26 33 37 45 47
elena55 [62]
Prime numbers are: 37, 47, 19,

Composite numbers are: 9, 15, 26, 33, 45
3 0
3 years ago
Read 2 more answers
In 2009 the bureau of labor statistics reported a surge in volunteerism. At this time there were a reported 63,361 volunteers in
yuradex [85]

Answer:

16,537

Step-by-step explanation:

Total Number of Volunteers in the US =  63,361

The pie chart for the question has been reproduced and attached below.

From the pie chart

Percentage of people who volunteered in the educational capacity = 26.1 %

Therefore, the number of people that volunteered in the educational capacity

=26.1% of 63,361

=0.261 X 63,361

=16,537 (to the nearest whole number)

6 0
3 years ago
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